| 高汝勇，高小宽，李会芬，高如杰，骆冬洁.黄顶菊对小麦根尖细胞的遗传毒性[J].麦类作物学报,2013,33(5):1035 |
| 黄顶菊对小麦根尖细胞的遗传毒性 |
| Genetic Toxicity of Flaveria bidentis to Wheat Root Tip Cells |
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| DOI：10.7606/j.issn.1009-1041.2013.05.032 |
| 中文关键词: 黄顶菊 遗传毒性 有丝分裂 |
| 英文关键词:Flaveria bidentis Genetic toxicity Mitosis |
| 基金项目:河北省科学技术研究与发展计划项目（12227505）。 |
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| 中文摘要: |
| 为了探讨入侵植物黄顶菊的遗传毒性，以5个小麦品种为材料，研究5种不同浓度的黄顶菊浸提液对小麦根尖细胞有丝分裂的影响。结果表明，黄顶菊浸提液对小麦有明显的遗传毒性。浸提液抑制了小麦根尖细胞有丝分裂指数，使间期细胞出现微核、多核，使分裂期细胞出现染色体断片、染色体桥、多极分裂、染色体粘连等畸变现象。随着浸提液浓度增加，小麦根尖细胞有丝分裂指数下降，微核率和染色体畸变率升高。 |
| 英文摘要: |
| In order to explore the genetic toxicity of Flaveria bidentis, its effects on the mitosis in wheat root tip cells were studied using 5 wheat varieties treated with different concentrations of Flaveria bidentis extracts (1%, 2.5%, 5%, 7.5% and 10%). The results showed that Flaveria bidentis produced genetic toxicity. The extracts inhibited the mitotic indexes. There were micronucleus, multinucleus at the interphase stage, and chromosomal fragment, chromosomal bridge, chromosome multipolar division and chromosome stickiness in the division stage. The mitotic indexes decreased, micronucleus frequency and the chromosomal aberrations frequency increased as the increase of the extract concentration. |
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